A student combined $25.0\,\text{cm}^3$ of $4.00\,\text{mol dm}^{-3}$ hydrochloric acid with the same volume of $4.00\,\text{mol dm}^{-3}$ sodium hydroxide. At the start, both solutions were at $15.0\,^{\circ}\text{C}$. The greatest temperature measured was $30.0\,^{\circ}\text{C}$. From these measurements, determine the enthalpy change of neutralisation of hydrochloric acid?
- A$-62.7\,\text{kJ mol}^{-1}$
- B$-31.4\,\text{kJ mol}^{-1}$
- C$-15.7\,\text{kJ mol}^{-1}$
- D$-3.14\,\text{kJ mol}^{-1}$